Class 11 Computer Science — Chapter 5: GETTING STARTED WITH PYTHON

What you'll learn

• ▸High-Level Languages and Interpreters
• ▸Python Execution Modes: Interactive vs. Script
• ▸Python Keywords
• ▸Identifiers and Naming Rules
• ▸Variables and Assignment
• ▸Comments in Python

Chapter Summary

--- PAGE 1 --- CHAPTER 5 GETTING STARTED WITH PYTHON 5.1 INTRODUCTION TO PYTHON We have written algorithms for different problems in Chapter 4. Let us now move a step further and create programs using any version of Python 3. But before learning about Python programming language, let us understand what is a programming language and how it works. An ordered set of instructions to be executed by a computer to carry out a specific task is called a program, and the language used to specify this set of instructions to the computer is called a programming language. As we know that computers understand the language of 0s and 1s which is called machine language or low level language. However, it is difficult for humans to write or comprehend instructions using 0s and 1s. This led to the advent of high-level programming languages like Python, C++, Visual Basic, PHP, Java that are easier to manage by humans but are not directly understood by the computer. A program written in a high-level langu…

Practice Questions from this Chapter

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1. Explain "interpreter" simply. Get Solution →
2. Give a real Python interactive example. Get Solution →
3. Show how to save a script. Get Solution →
4. What is an ordered set of instructions to be executed by a computer to carry out a specific task called? Get Solution →
5. What is a program written in a high-level language like Python called? Get Solution →
6. What type of language translator does Python use to convert its instructions into machine language? Get Solution →
7. In the Python shell, what symbol is the prompt that indicates the interpreter is ready to take instructions? Get Solution →
8. What is the standard file extension for a Python source code file? Get Solution →

Did you know?

• 💡 Python was named after the comedy group Monty Python, not the snake.
• 💡 Ada Lovelace wrote the world's first computer program in the 1840s.
• 💡 Computers fundamentally understand only two things: 0 (off) and 1 (on).
• 💡 There are thousands of different programming languages used today.
• 💡 Python helps run big websites like YouTube and services like Instagram.

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